Carriage-bearing.



PATENTED NOV. 22, 1904.

L. MYERS. CARRIAGE BEARING.

APPLICATION FILED JUNE 30, 1903.

N0 MODEL.

II lllll INVENTUH I B) \ar/a-m WI TN E SSE S:

ATTORNEYS UNITED STATES Patented November 22, 1904.

LOUIS MYERS, OF HARTFORD, CONNECTICUT, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEIV YORK, N. Y.,

NEWV JERSEY.

A CORPORATION OF CARRIAGE-BEARING- SPECIFICATION forming part of Letters Patent No. 775,338, dated November 22, 1904.

Application filed June 30, 1903. Serial No. 163,745. (No model.)

To all whom it may concern.-

Be it known that I, LOUIS MYERS, a citizen of the United States, and a resident of Hartford, in the county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Carriage-Bearings, of which the following is a specification.

My invention relates to bearings for carriages of various machines, and particularly type-writers. The object of my present invention is to provide a carriage that will travel with very little friction. Other features of my invention will appear from the description following hereinafter and from the appended claims.

Reference is to be had to the accompanying drawings, in which Figure 1 is a longitudinal section on line 1 1 of Fig. 2, and Fig. 2 is a cross-section on line 2 2 of Fig. 1.

A indicates a portion of the machine-frame which is provided withlugs A, upon which are cast or secured studs B. On the said studs B are mounted bearing-wheels E, which are prevented from leaving the studs by nuts C. The carriage has a bearing portion F, provided at its front and rear surfaces with V-grooves F, arranged to fit the peripheries of the bearingwheels E. It will be understood that four such wheels are used, two at the front and two at the rear of the carriage-bearing portion F; but a greater number may be employed, if desired.

The connection of the carriage with the escapement mechanism may be made in any suitable manner; but I prefer the construction shown. Here the carriage is provided with depending lugs F to which are fulcrumed, as at F, arms G, which at their lower ends carry pivotally pinions H, adapted to engage a rack A on the frame A. The arms Cr have longitudinal slots G for the passage of the pivots F. The upper ends of the arms G are pivotally connected with a rackbar I, which is normally in engagement with the feed-Wheel J of the escapement mechanism. This feed-wheel is mounted on a shaft K, which also carries the escapement-wheel L. Further details of the escapement mechanism have not been shown, since rotary escapements for type-writers are well known.

It will be seen in Fig. 1 that the arms G are normally arranged in an inclined position, so that the pinions H are not directly under the pivots F of said arms. Thus when the carriage travels from right to left in its customary step-by-step feed movement the pinions H will simply roll on the rack A withoutafi'ecting the normal operation of the parts. It will of course be understood that the rackbar I is much heavier than the pinions H, so that the weight of the rack-bar will keep it in engagement with the feed-wheel J. \Vhen, however, the carriage is rcturned/. (1., moved from left to right, as indicated by the arrow a in Fig. la shifting action will obviously take place at the pinions H, and this action will cause the arms G to move on their pivots in such a manner as to raise the rackbar I out of engagement with the feed-wheel J The return movement of the carriage is thus materially facilitated.

Various modifications may be made without departing from'the nature of my invention.

hat I claim as new, and desire to secure by Letters Patent, is

1. The combination with the frame and the carriage, of a rack on said frame, arms pivoted on the carriage, pinions journaled in said arms at a distance from their pivots and engaging said rack of the frame, a rack-bar connected with said arms, and escapement mechanism arranged for engagement with said rackbar.

2. The combination with the frame and the transversely-traveling carriage, of a horizontal rack on said frame, arms pivoted to the carriage and normally standing in an inclined position, pinions journaled in the lower portions of said arms and adapted for engagement with said rack, a rack-bar suspended from the upper portions of said arms, and escapement mechanism adapted for engagement with said rack-bar.

3. The combination with the frame and the carriage, of arack-bar loosely connected with the carriage, escapement mechanism adapted for engagement with said rack-bar, and mechanism pivotally secured to said rack-bar to travel therewith, and operated by the return movement of the carriage for moving the rack-bar out of engagement with the escapement mechanism.

4. The combination with the frame and the carriage, of a rack-bar, an escapement-wheel adapted for engagement with said rack-bar, one of said elements being movable relatively to the other so as to enable the rack-bar to be disengaged from the escapement mechanism, and mechanism pivotally secured to said rackbar to travel therewith and operated by the return movement of the carriage for throwing the rack-bar and escapement mechanism out of engagement with each other.

5. The combination with the frame and the carriage, of a rack-bar, escapement mechan- In testimony whereof I have signed my name to this specification in the presence of two subscribing wltnesses.

LOUIS MYERS.

WVitnesses:

JOHN LOTKA, EUGENE EBLE. 

